Astra GTE Calipers

Yep, the old Volvo/Carlton saga continues here.

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Postby iety2004 » 10 May 2005, 21:34

Slap a pair of Astra GTE calipers on there, cos they are vented and fit a Manta

I bought a set, all you need to do is fit a spacer to the wheel to compensate for the wider caliper, easy pease i reackon
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Postby shuvit-tim » 10 May 2005, 23:43

seriously?! you got them to fit!? can you make me up a spacer or did you buy one? I have a spare set of the calipers in my shed :D
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Postby jifop » 11 May 2005, 08:06

iety2004 wrote:i reackon


have you actually done it yet then? with manta disks? or is this purely speculation after offering them up?
Before you say anything..... no i cant spell or type!

The post above is my own personal opinion, it is not meant to upset or cause offence, if it does bugger off.

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Postby shuvit-tim » 11 May 2005, 11:23

waits with baited breath.............
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby iety2004 » 13 May 2005, 00:21

Well you simply use a normal wheel spacer to stop the wheel rubbing against the wider vented caliper.

But this setup would only fit under 14" wheels
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Postby shuvit-tim » 13 May 2005, 01:27

what about manta 5 spokes?

so the calipers just bolt straight on? and th evented discs? or do the discs need re-drilling?
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Postby iety2004 » 17 May 2005, 00:13

Use the Carlton discs, the centres are the right diameter.

Yeah Manta GTE were the wheels i was thinking of using,
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Postby mantasport » 24 Sep 2005, 20:34

The problem with the carlton disc is that its a 246mm diameter, but the astra 16v caliper is for a 256mm disc. So the pads will overhang the disc which isn't a good idea.

The better way of doing it is to use the astra 16v disc. Obviously this won't just bolt on (unfortunatley) it requires a little machining and a spacer to line it up. I've been making these kits up for people in the Opel Manta owners club for a couple of years now and have many happy customers.

More info on the kits can be found HERE and i've got a set for sale on e-bay HERE
If any of you have questions about the kits i'll try to answer them asap.
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Last edited by mantasport on 28 Sep 2005, 18:13, edited 1 time in total.
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Postby iety2004 » 26 Sep 2005, 10:32

Its got to be said but they look the boy, not sure i would spend that kinda money tho,

think i'll have a bash at making them myself :lol:

Thanks for the pictures :wink:
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Postby Shoveitpusher » 26 Sep 2005, 11:47

don't forget the later carlton disks are bigger but with almost the right offset (the odd mm)
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Postby mantasport » 26 Sep 2005, 16:15

If you've got access to a lathe and know how to use it then making the spacers isn't hard. You just need to know what thickness they need to be.
I don't have a lathe so pay a local engineer to make the spacers for me in batches of 10pairs at a time, he also re-works the discs so they will fit. With these and some longer bolts (of the right thread, which is an odd one!) and you've got a disc conversion.


As for carlton disc's according to my tech book the early carltons (up to 86) had 246x24 disc's with a 4bolt fixing which is too small for the 16v calipers but is the same size as the 8v astra calipers from mki ior mkii cars.

The late 2.0 and 2.2 had 256x24 (same size as the 16v astra/ cavalier/ vectra etc) but were a 5stud fittment

Then the late 3.0 and 3.0 24v had massive 280/296 discs but were also 5stud.

The problem with 5 stud disc's is that you'll need to drill 4 new holes to attach the disc to the rear of the hub and between the original bolt holes and fixing holes there's not a lot of room to line up 4 new holes at a slightly different PCD. It might well be ok but i've never done it so couldn't say it was possible.
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Postby Shoveitpusher » 27 Sep 2005, 08:29

got them on my chevette with volvo 4 pots.
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Postby mantasport » 27 Sep 2005, 13:54

So thats carlton disc's and volvo calipers?

That sounds about right the volvo takes a smaller disc than the astra ones so the carlton would be closer.

Do the pads hang over the disc at all or do they line up spot on?
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Postby Shoveitpusher » 28 Sep 2005, 08:59

i honestly can't remember, it's been a few years since i looked at them - the car's been being reshelled for about 2 years now (long story but it's been convienient) i should have it back in a month or so
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Postby andy » 28 Sep 2005, 18:01

mantasport i am vey interested in getting a set of these disc for use on my chevette im after just plain discs how much would it be for a set of discs and spacers

cheers andy
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Postby mantasport » 28 Sep 2005, 23:25

Well theres a pair on e-bay at the moment HERE And another set will be going on quite soon, although the next set will be cross drilled aswell.

But if you want a set i have 1 set of plain disc's left at the moment and they will cost £135 + £15postage. Thats a full set of disc's+spacers and bolts, you just need to get some calipers.

I prefer payment through paypal as its simple to keep a track of, But will take a cheque or postal orders.

If you want a set drop me an E-mail to [email protected]
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Postby mantasport » 29 Sep 2005, 10:24

mantasport wrote:Then the late 3.0 and 3.0 24v had massive 280/296 discs but were also 5stud.

The problem with 5 stud disc's is that you'll need to drill 4 new holes to attach the disc to the rear of the hub and between the original bolt holes and fixing holes there's not a lot of room to line up 4 new holes at a slightly different PCD. It might well be ok but i've never done it so couldn't say it was possible.


Ok forget the 5stud comment, just looked again and they do list 4 stud big disc's but they are under Opel not Vauxhall :?
bloody european companies confusing me :oops:

So a really big 280mm plus kit should be available soon :D

Oh i'll also be rtrying to sort a rear disc conversion soon, i'll let you know when its ready.
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Postby nutty but nice » 10 Oct 2005, 20:22

Here's a question for you why use astra 16v discs when you can use manta vented discs, obviously the manta discs are ford pcd but they can be machined & wont need a spacer as they are rwd discs???
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Postby Neilyman » 10 Oct 2005, 21:42

nutty but nice wrote: obviously the manta discs are ford pcd


What? Mantas are 4 x 108mm pcd? new one on me.. :P

They`re 4 x 100mm....honest :wink:
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Postby nutty but nice » 10 Oct 2005, 22:56

I was reading somewhere on here that they were pcd 108 & they are different from kadett discs, hmm well if there not why not use manta vented discs instead of gte discs.
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Postby Herbie_Flowers » 10 Oct 2005, 23:28

you'd use manta discs if you had manta calipers and astra discs with astra calipers because the manta discs are 10mm less in diameter so the pads would overhang the disc if you used astra calipers.
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Postby shuvit-tim » 11 Oct 2005, 09:23

Herbie_Flowers wrote:you'd use manta discs if you had manta calipers and astra discs with astra calipers because the manta discs are 10mm less in diameter so the pads would overhang the disc if you used astra calipers.


that and the fact that the 16V discs come vented as standard without having to purchase a "performance option" which always tends to cost more.

as for using a manta brake set up instead of a 16V set-up - i've driven cars using both and the difference is unbelievable. if you use the 16V brakes you will stop on a 50p piece.

by the way, has anyone fitted a bigger servo to the chevette on fitting bigger brakes or does the standard unit do the job well enough?
when all else fails, rivets, cable ties and bodge tape will see you through

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Postby Doive » 11 Oct 2005, 09:29

I've just adjusted up the standard brakes for the MoT, and these combined with the new tyres means I can just stamp on the pedal and the car stops very sharply indeed without fuss or drama. I'm sure if I performed that repeatedly the brakes would fade away to nothing (hence an upgrade) but they do the job for me.
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Postby nutty but nice » 11 Oct 2005, 16:10

Couldnt you just file down the excess over hang on the pad?
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Postby Herbie_Flowers » 11 Oct 2005, 16:43

no reason why not if there isn't Asbestos in the pad and it still locates fine.
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